You cant quote me completely on this... but i think the first one is A and the second one is C... again dont quote me but im pretty sure these are the answers
Answer:
25% red
50% roan
25% white
Explanation:
When RR (red) is crossed with WW (white), it results in roan color.
RR (red) x WW (white)
RW (roan)
Two roan individuals are then mated.
RW x RW
RR RW RW WW
Offspring
1/4 RR - Red
1/2 RW - Roan
1/4 WW - White
<u>Hence, the offspring are expected to be 25% red, 50% roan, and 25% white.</u>
C. Xylem moves water up, and phloem moves food down
Answer:
The given statement is true.
Explanation:
Genome is not a steady entity, it is exposed to various kinds of heritable modifications, a sudden and heritable modification in the arrangement of the genome in an organism, which produces different forms of any gene is called mutation.
The mutations provide the raw material for genetic evolution, mutation leads to the generation of alleles, in the absence of mutation all the genes would prevail only in one form, and the organism would lose to the tendency to evolve and amend with the changing environments.